420135001 has 16 divisors (see below), whose sum is σ = 496879488. Its totient is φ = 350208000.

The previous prime is 420134987. The next prime is 420135007. The reversal of 420135001 is 100531024.

It is a cyclic number.

It is not a de Polignac number, because 420135001 - 2¹⁵ = 420102233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420135007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11865 + ... + 31321.

It is an arithmetic number, because the mean of its divisors is an integer number (31054968).

Almost surely, 2^420135001 is an apocalyptic number.

It is an amenable number.

420135001 is a deficient number, since it is larger than the sum of its proper divisors (76744487).

420135001 is a wasteful number, since it uses less digits than its factorization.

420135001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19632.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 420135001 is about 20497.1949544322. The cubic root of 420135001 is about 748.9674686391.

Adding to 420135001 its reverse (100531024), we get a palindrome (520666025).

The spelling of 420135001 in words is "four hundred twenty million, one hundred thirty-five thousand, one".